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hlsdemux: properly flush decryption status on seeks

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Avoids mixing decryption of different fragments when seeking happens
and leading to broken stream output.
This commit is contained in:
Thiago Santos 2014-04-28 20:01:48 -03:00
parent ff395a7565
commit 587851ba10
1 changed files with 14 additions and 1 deletions
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15
ext/hls/gsthlsdemux.c
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@ -388,6 +388,16 @@ gst_hls_demux_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
g_rec_mutex_lock (&demux->stream_lock); g_rec_mutex_lock (&demux->stream_lock);
/* properly cleanup pending decryption status */
if (flags & GST_SEEK_FLAG_FLUSH) {
if (demux->adapter)
gst_adapter_clear (demux->adapter);
if (demux->pending_buffer)
gst_buffer_unref (demux->pending_buffer);
demux->pending_buffer = NULL;
gst_hls_demux_decrypt_end (demux);
}
/* Use I-frame variants for trick modes */ /* Use I-frame variants for trick modes */
if ((rate > 1.0 || rate < -1.0) && demux->segment.rate >= -1.0 if ((rate > 1.0 || rate < -1.0) && demux->segment.rate >= -1.0
&& demux->segment.rate <= 1.0) { && demux->segment.rate <= 1.0) {
@ -1250,6 +1260,7 @@ gst_hls_demux_reset (GstHLSDemux * demux, gboolean dispose)
demux->pending_buffer = NULL; demux->pending_buffer = NULL;
demux->current_key = NULL; demux->current_key = NULL;
demux->current_iv = NULL; demux->current_iv = NULL;
gst_hls_demux_decrypt_end (demux);
demux->current_download_rate = -1; demux->current_download_rate = -1;
} }
@ -1681,8 +1692,10 @@ decrypt_fragment (GstHLSDemux * demux, gsize length,
static void static void
gst_hls_demux_decrypt_end (GstHLSDemux * demux) gst_hls_demux_decrypt_end (GstHLSDemux * demux)
{ {
if (demux->aes_ctx) if (demux->aes_ctx) {
gcry_cipher_close (demux->aes_ctx); gcry_cipher_close (demux->aes_ctx);
demux->aes_ctx = NULL;
}
} }
#endif #endif